watcher / trap; snare (placed or set up strategically) / act of waiting (for a person, an opportunity, etc.) / act of setting up a trap or snare

hawaiian holly (Leea guineensis) / midnight horror (Oroxylum indicum) / rash; skin eruptions

to wait and watch (for something or someone) / to lie in wait; to stay hidden; to ambush; to ready to attack

place where one waits (for something or someone) / place for ambush

to wait and watch (for something or someone) / to be on the alert for; to wait for an opportune time / to ambush; to waylay